Pspice opamp DC open loop gain

1. The problem statement, all variables and given/known data
Hi, im trying to use pspice student to work out a ideal opamp. This is what i did:

2. Relevant equations
I have find out the gain for my opamp using simulation. But the problem is how can i find out the DC open loop gain using this software? i have google it and it just show me the way of "spice" to find out the open loop gain. In my courework, i need to use the simulation.

The amplifier in your diagram is "closed loop" because you have a feedback resistor of 100k from the output ( terminal 6) to the - input ( terminal 2)
Open loop means removing this feedback resistor ( the open loop gain will be very, very high !!!!!!!)
"not at the rails" means the output voltage is less than the power supply voltages +/- 10V ( power supply connections are sometimes called " the rails")

I have connected a cap paralle with R2 to decrease the noise. And how can i find out the offset voltage for my opamp? It said i have to connect the terminal 1 and 5 to zero to get the offset voltage. But i am still confusing how can i do that?